<template>
  <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-bind="$attrs" />
  <svg v-else :class="svgClass" aria-hidden="true" v-bind="$attrs">
    <use :xlink:href="iconName" />
  </svg>
</template>

<script lang="ts">
  import { defineComponent, computed } from 'vue'
  import { getExternal } from "@/utils/validate";

  export default defineComponent({
    name: "svgicon",
    props: {
      iconClass: {
        type: String,
        required: true
      },
      className: {
        type: String,
        default: ''
      }
    },
    setup(prop) {
      const isExternal = computed(() => getExternal(prop.iconClass))
      const iconName = computed(() => `#icon-${prop.iconClass}`)
      const svgClass = computed(() => {
        if (prop.className) {
          return 'svg-icon ' + prop.className
        } else {
          return 'svg-icon'
        }
      })
      const styleExternalIcon = () => {
        return {
          mask: `url(../../icons/svg/${prop.iconClass}.svg) no-repeat 50% 50%`,
          '-webkit-mask': `url(../../icons/svg/${prop.iconClass}.svg) no-repeat 50% 50%`
        }
      }
      return {
        isExternal,
        iconName,
        svgClass,
        styleExternalIcon
      }
    }
  })
</script>

<style scoped>
  .svg-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
  }

  .svg-external-icon {
    background-color: currentColor;
    mask-size: cover!important;
    display: inline-block;
  }
</style>
